Most of the Soundpools were created at a specific BPM. However they will conform to whatever tempo your project is currently using. Being mindful that 80bpm loops sound fairly hyperactive at 133bpm there are creative ways to use them. You can temporarily set your project to half or double time and drop a soundpool loop in it. The use the start-stop bar to define it and solo the track. Then export it as a flac or wave and reimport it after setting the tempo back.
You might also want to check out the "Stretch" mouse mode, which you can reach via the mouse mode drop-down menu in the top menu bar, or via the keyboard shortcut combination CTRL+7. This will allow you to grab the audio/loop object by the start or end handle and manipulate it to fit into the grid. However, instead of cutting off or extending the start/end points, it will time-stretch the object for its entire timing to change and fit into the project tempo.
Other than that, as Robert mentioned: If your loops are tagged with the correct tempo, they will automatically adjust to the project tempo on import - unless you specifically disabled this option in the program settings, in which case you might want to enable it again: "P" key => "Import" tab => "Automatically adjust samples to BPM" checkbox.